NCV1124 ON Semiconductor, NCV1124 Datasheet

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NCV1124

Manufacturer Part Number
NCV1124
Description
Dual Variable−reluctance Sensor Interface IC
Manufacturer
ON Semiconductor
Datasheet

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NCV1124
Dual Variable−Reluctance
Sensor Interface IC
to condition signals from sensors used to monitor rotating parts.
channels interfaces with a variable−reluctance sensor, and
c o n t i n u o u s l y c o m p a r e s t h e s e n s o r o u t p u t s i g n a l t o a
user−programmable internal reference. An alternating input signal of
appropriate amplitude at IN1 or IN2 will result in a rectangular
waveform at the corresponding OUT terminal, suitable for interface to
either standard microprocessors or standard logic families.
test for degradation or loss of the physical connector to both sensors.
Typical Applications
Features
© Semiconductor Components Industries, LLC, 2006
April, 2006 − Rev. 0
The NCV1124 is a monolithic integrated circuit designed primarily
The NCV1124 is a dual channel device. Each of the two identical
A diagnostic input, common to both channels, provides a means to
Anti−Skid Braking and Traction Control
Vehicle Stability Control
Drive Belt Slippage Detection
Crankshaft/Camshaft Position Sensing
Two Independent Channels
Internal Hysteresis
Built−In Diagnostic Mode
Designed to Work from a 5.0 V "10% Supply
Site and Control for Automotive Applications
Pb−Free Packages are Available
R
R
V
V
RS
RS
Variable
Reluctance
Sensor
Variable
Reluctance
Sensor
RS
RS
R1
R2
DIAG
C1
C2
IN1
IN2
V
Figure 1. Block Diagram
CC
INP2
INP1
V
CC
V
CC
Clamp
Clamp
Active
Active
V
CC
IN
Adj
V
R
CC
COMP1
COMP2
Adj
+
+
V
V
GND
CC
CC
1
OUT1
To mP
OUT2
To mP
See detailed ordering and shipping information in the package
dimensions section on page 3 of this data sheet.
V1124
A
L
Y
W
G
ORDERING INFORMATION
GND
IN
MARKING DIAGRAM
IN1
IN2
PIN CONNECTIONS
Adj
http://onsemi.com
1
8
1
= Device Code
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
CASE 751
8
SO−8
ALYW4
V1124
Publication Order Number:
G
1
8
V
OUT1
OUT2
DIAG
CC
NCV1124/D

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NCV1124 Summary of contents

Page 1

... The NCV1124 is a monolithic integrated circuit designed primarily to condition signals from sensors used to monitor rotating parts. The NCV1124 is a dual channel device. Each of the two identical channels interfaces with a variable−reluctance sensor, and user− ...

Page 2

... Open−Sensor Positive Threshold Logic Inputs DIAG Input Low Threshold DIAG Input High Threshold DIAG Input Resistance 2. This parameter is guaranteed by design, but not parametrically tested in production. NCV1124 Rating Reflow: (SMD styles only) (Note 1) (4.5 V < V < 5.5 V, −40°C < T < 125°C, V ...

Page 3

... NCV1124DR2G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. DIAG Variable RS Reluctance Sensor NCV1124 FUNCTION Package SO−8 NB (Pb−Free) SO−8 NB (Pb−Free ...

Page 4

... For example then V RS(MAX Adj ) V HYS (6) Therefore, the V The NCV1124 will typically run at a frequency up to 1.8 MHz if the input signal does not activate the positive or (7) negative input clamps. Frequency performance will be lower when the positive or negative clamps are active. ...

Page 5

... DIAG goes from a low to a high. There is no hysteresis when DIAG is high. IN1, 200 mV/div OUT1, 2.0 V/div 20 ms/div Figure 3. Minimum Threshold Operation OUT1, 2.0 V/div 20 ms/div Figure 4. Low−Side Clamp NCV1124 CIRCUIT DESCRIPTION OUT1, 2.0 V/div Figure 5. Low− and High−Side Clamps Figure 6. Diagnostic Operation IN1, 5.0 V/div http://onsemi.com 5 IN1, 5.0 V/div ...

Page 6

... V RS(+)MAX + 16 mA(17. 15mA(14. 1 180 mV + 229 mV which is still less than the 250 mV minimum amplitude of the input. NCV1124 APPLICATION INFORMATION 5. Calculate C1 for low pass filtering Since the sensor guarantees 40 V pass filter using R1 and C1 can be used to eliminate high frequency noise without affecting system performance. ...

Page 7

... *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. PACKAGE THERMAL DATA Parameter R qJC R qJA NCV1124 PACKAGE DIMENSIONS SO−8 NB CASE 751−07 ISSUE 0.10 (0.004) ...

Page 8

... USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 8 ON Semiconductor Website: http://onsemi.com Order Literature: http://www.onsemi.com/litorder For additional information, please contact your local Sales Representative. NCV1124/D ...

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